import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/login.vue'
import Home from '../components/home.vue'
Vue.use(VueRouter)
const router=new VueRouter({
  routes:[
    { path:'/',redirect:'/login'},
    { path:'/login', component: Login },
    { path:'/home', component: Home }
  ]
})
//挂载路由导航守卫
router.beforeEach((to,from,next)=>{
  //to表示要将要访问的路劲
  //from表示从哪个路劲来
  //next 是一个函数，表示放行
    //next() 放行 next("/login") 强制跳转
  if(to.path=='/login') return next()
  //获取token
  //const tokenStr=window.sessionStorage.getItem('token')
  //if(tokenStr==null){
   //   return next('/login');
  //}
  next();
})
export default router;